The announcement suggests there will be no letting up in the whirlwind 2015 Smith has already been having. He has already cleaned up four Grammy Awards this year, as well as showing off a remarkable weight loss, which he credited to Amelia Freer's Eat Nourish Glow diet.

Smith was forced to have surgery on his throat earlier this year, leaving fans concerned that they wouldn't be able to hear his velvety tones for a while.